Headset



FIG. 1 is a top perspective view of a headset showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is an opposite side elevational view thereof;

FIG. 6 is an end view thereof; and,

FIG. 7 is an opposite end view thereof.

The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a headset, as shown and described. 